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  <a name="EN-US_TOPIC_0000001792520494"></a><a name="EN-US_TOPIC_0000001792520494"></a>
  <h1 class="topictitle1">Step 3: Creating a Logical Port for the Replication Network</h1>
  <div>
   <p>When a storage device is OceanStor Dorado 6.1.3 or later, or OceanStor 6.1.3 or later, NAS file system backup can be implemented using the replication function between the production storage and the <span>product</span>. In this case, a logical port for the replication network needs to be created respectively on the storage device and the <span>product</span> for remote replication data transmission. NAS share backup is implemented if other types of storage devices are used, and a logical port is not required for the replication network. In this case, skip this section.</p>
   <div class="section">
    <h4 class="sectiontitle">Prerequisites</h4>
    <p>The replication network IP addresses of the primary and secondary storage systems have been planned and are in the same network segment as the backup network IP addresses.</p>
   </div>
   <div class="section">
    <h4 class="sectiontitle">Procedure</h4>
    <p>The following describes how to create a logical port for the replication network on the <span>product</span>. This also applies to the creation on a storage device.</p>
    <ol>
     <li><span>Log in to DeviceManager.</span></li>
     <li><span>Choose <span class="uicontrol"><b>Services &gt; Network &gt; Logical Ports</b></span>.</span></li>
     <li><span>Click <span class="uicontrol"><b>Create</b></span> to create a logical port.</span><p></p><p><a href="#EN-US_TOPIC_0000001792520494__en-us_topic_0000001188062683_en-us_topic_0000001149078659_table4902520114617">Table 1</a> describes the related parameters.</p>
      <div class="tablenoborder">
       <a name="EN-US_TOPIC_0000001792520494__en-us_topic_0000001188062683_en-us_topic_0000001149078659_table4902520114617"></a><a name="en-us_topic_0000001188062683_en-us_topic_0000001149078659_table4902520114617"></a>
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        <caption>
         <b>Table 1 </b>Parameters related to a logical port
        </caption>
        <colgroup>
         <col style="width:43.55%">
         <col style="width:56.45%">
        </colgroup>
        <thead align="left">
         <tr>
          <th align="left" class="cellrowborder" valign="top" width="43.55%" id="mcps1.3.3.3.3.2.2.2.3.1.1"><p>Parameter</p></th>
          <th align="left" class="cellrowborder" valign="top" width="56.45%" id="mcps1.3.3.3.3.2.2.2.3.1.2"><p>Description</p></th>
         </tr>
        </thead>
        <tbody>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>Name</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>Name of a replication network logical port, which can be customized.</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>Role</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>Select <span class="uicontrol"><b>Replication</b></span>.</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>IP address type</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>IP address type of a replication network logical port, which can be IPv4 or IPv6.</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>IP</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>IP address of a replication network logical port</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>Subnet mask</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>Configure a subnet mask if the IP address type is IPv4.</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>Prefix</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>Configure a prefix if the IP address type is IPv6.</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>Gateway</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>Gateway used for the IP address of a replication network logical port</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>Port type</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>Users can create a logical port for the replication network by selecting Ethernet port, bond port, or VLAN.</p> <p>By default, the port used for replication has been bonded during the initialization of the <span>product</span>. Therefore, the bond port needs to be selected if there is no other operation (such as deleting the bond port).</p></td>
         </tr>
         <tr>
          <td class="cellrowborder" valign="top" width="43.55%" headers="mcps1.3.3.3.3.2.2.2.3.1.1 "><p>Home port</p></td>
          <td class="cellrowborder" valign="top" width="56.45%" headers="mcps1.3.3.3.3.2.2.2.3.1.2 "><p>Ethernet port, bond port, or VLAN to which the created logical port belongs.</p> <p>Select any one of the ports after the system has filtered all ports used for the replication network.</p></td>
         </tr>
        </tbody>
       </table>
      </div> <p></p></li>
     <li><span>Click <span class="uicontrol"><b><span><strong>OK</strong></span></b></span>.</span></li>
     <li><span>Repeat the preceding steps to configure a logical port for each home port.</span></li>
    </ol>
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   <div class="familylinks">
    <div class="parentlink">
     <strong>Parent topic:</strong> <a href="en-us_topic_0000001839159849.html">Backing Up a NAS File System</a>
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